明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白(bái )，陷(xiàn )害忠(zhōng )良，朝野内(nèi )外噤若(ruò )寒蝉。时有赵(zhào )怀安（李连杰(jié ) 饰）等流亡剑客挺身而(ér )出，接连铲(chǎn )除(chú )东(dōng )厂数名奸佞，致令阉贼胆战心惊。适值此(cǐ )时(shí )，风头正劲的西厂